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Who Discovered Silver?

Who Discovered Silver?
Introduction Silver is a precious metal with many uses. It is used to in photography, dentistry, jewelry, utensils and tableware, currency, and optics. No one knows who discovered silver first. Like gold, it is one of the oldest elements known to mankind. History and Early Uses of Silver Humans have been mining silver for many thousands of years. Archeologists have found slag near the Aegean Sea dating back to 4000 BC. Silver is rarely found unmixed with other elements, so mining for it was difficult. The metal was often mixed with lead, which is poisonous. Many silver and lead miners died from lead poisoning in a few years’ time. Because of this, mining for these metals was forced labor, that is, slave labor. Silver has played an important role in shaping economies. In about 500 BC, the Athenian people discovered a silver mine in Laurion nearby. With this treasure they enriched their city and built a powerful navy. A rival city, Sparta, had its own silver mine. Carthage overran the area...

Who Discovered Magnets?

Who Discovered Magnets?
Introduction A magnet is an object that produces a magnetic field. It attracts certain other objects to it, and repels other magnets Because magnets have been known to man for so long, it is inevitable that legends have formed regarding its discovery. The word “magnet” is from a Greek term meaning “Magnesian rock.” Legends of the Discovery of Magnets One story tells how a shepherd named Magnes discovered magnet about 2,000 BC. He was guiding his sheep along the pastures of Magnesia in northern Greece. Now Magnes was carrying a shepherd’s rod with a metal tip, and his shoes had nails in them. He stepped on a big black rock and next thing he knew, both his rod and shoes got stuck on the rock by their metallic parts. Perplexed, the shepherd got out of his shoes and dug up the ground. He found loadstones underneath. Loadstones are naturally magnetic due to a substanc3e known as FE304. The Greeks later renamed the stone magnesia after its founder or the area where it was discovered. Historical...

Who Discovered Magnesium?

Who Discovered Magnesium?
Considered as one of the most abundant elements in our body, magnesium is an alkaline earth metal that plays an essential role in the functioning of biological polyphosphate compounds such as DNA, ATP and RNA. This element is also important to plant growth because it is the chlorophyll’s center. Aside from these, the element has other medical, agricultural and industrial uses. To know more about this element, it is best to start with the history of the discovery of magnesium. Historical Background Who discovered magnesium? Based on records, the metal was extracted and discovered in 1808 in England by Sir Humphry Davy. He extracted the element from the mixture of mercury oxide and magnesia with the use of electrolysis. Davy named the element magnium, however, it was later on called magnesium by other scientists. Even if Davy was credited for the discovery of the alkaline earth metal, Epsom salt, a compound form of the element was already used by a farmer in the country to heal rashes as...

Who Discovered the Dead Sea Scrolls?

Who Discovered the Dead Sea Scrolls?
The Discovery of the Dead Sea scrolls The famous Dead Sea Scrolls were discovered in 1947 in Qumran by a group of Bedouin goat herders. Qumran is located just a kilometer from the Dead Sea. While looking for a stray goat there, the herders wandered into a cave. They found a set of jars containing old manuscripts. Recognizing some value in this strange find, the Bedouin sold them to a shoemaker named Kando. Kando specialized in the buying and selling of antiquities. Of the seven jars that he’d bought, he sold three of them to Eleazar Sukenik of the Hebrew University. He then sold the other four to Mar Athansius, a member of the Syrian Orthodox monastery. Athansius later brought his scrolls to American School of Oriental Research. Not long adter that, western scholars gathered around the Dead Sea Scrolls like fireflies around light. Read more VN:F [1.9.22_1171]please wait...Rating: 6.0/10 (3 votes cast)

Who Discovered Fractals?

Who Discovered Fractals?
Benoit Mandelbrot is usually credited with discovering fractals in 1975. Mandelbrot was the one who invented the word. He was also the first to represent them visually. But some facts about fractals were known to mathematicians as far back as the 17th century. Early Fractal Research A fractal can be described as a pattern that is repeated at every scale. It cannot be replicated by classical geometry. The concept of self similarity was first brought up by the philosopher and mathematician Lebinz in the 17th century. It wasn’t until 1872 before a function appropriate to be termed a fractal came into being. Karl Weierstrass showed an instance of a function that was continuous but could not be differentiated. This definition was improved upon by Helge von Koch in 1904 when he defined it as a Koch curve. A study of the facts about fractals will show it is now called the Koch snowflake. In 1915, Wallow Sierpinski created a triangle and a carpet. In 1938, Paul Levy came up with another fractal...